Anyone know what the serial on the odb1 ecu decodes to? I left a pic as to maybe get a explanation of this. http://s1175.photobucket.com/albums/...-19-21_232.jpg http://s1175.photobucket.com/albums/...-19-03_731.jpg Another ECU http://s1175.photobucket.com/albums/...t=DSC_0665.jpg. example pictures (the p-14 is mine)

 

cant see pics

 

Damn. I can't get this cell to upload pics right. Ill keep trying I got some real good topic of discussion If i get this working.....errrrr......

 

37820 denotes its an ecu
P14/P28 denotes what chassis/engine combo
A61/A52 denotes what 5spd/auto

in the pictures you provided
the 37820-p14-a61 ecu is a 92-93 prelude si automatic ecu
the 37820-p28-a52 ecu is a 92-95 civic/del sol ex/si automatic ecu

 

Awesome. What does the 2W and or 4A6 mean on the p14 or the AWN on the p28 mean?

 

Hasport, so axx with one of the x's being a 5 only applies to auto civic/integra ? and axx with one of the xx's being a 6 applies to preludes? and accords?

 

possibly where or when the ecu was made. im not entirely sure

 

A 0 after the A in Axx denotes 5spd
a number other than 0 after the A in Axx denotes automatic

ive seen 1s and 5s on the civic/integra ecus
prelude accord ecus i am not that well versed on

 

Is there charts out there to decode ECUs? A link to some kind of decode chart would be great then I will be able determine what ecu came from what originally. Thanks.

 

in 88-91 ecus (PM6, PR4, PW0, PR3, PM7):
5spd = 000, 001, 002, A00, A01, A10, J00, J001, C01, C00
Auto = J51, J50, A50, A51, 901, A60, C50, C51, X30, A80, L50, L51

92-5 ECUs (P28, P30, P61, P72, P91, P08)
5spd = 000, 001, 002, 003, A00, A01, A02, C00, C01, C02, J00, J01, J02, G00, G01
Auto = J50, J51, 901, 902, C50, C51, C52, A50, A51, A52, L50, L51, G51

96-00 ECUs (P2E, P2P, P2J, P72, P73)
5spd = 000, 001, 002, 003, A00, A01, A03, C00, C01, C02, C03, J00, J01, J02, A11, C11
Auto = A70, A71, A72, A91, A92, C70, C71, C72, C91, C92

from the patterns we can learn the following:
first letter = country of orgin
J = Japan
C= Canada
A=USA
G=Europe
second digit, if 5, 7, 9 then ecu is auto usually
third digit denotes the version/variation
L = California emissions or typically high altitude states as well.

 

Exactly what I was looking for!

 

Glad to be of some help

 

Is a p14-a10 a auto or manual trans?